Seed from u64

paritytech · Dec 30, 2020 · a29d15c · a29d15c
1 parent 53cf7e9
commit a29d15c
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Showing 2 changed files with 3 additions and 17 deletions.
diff --git a/fixed-hash/Cargo.toml b/fixed-hash/Cargo.toml
@@ -24,6 +24,7 @@ arbitrary = { version = "0.4", optional = true }
 [dev-dependencies]
 rand_xorshift = "0.2.0"
 criterion = "0.3.0"
+rand = { version = "0.8.0", default-features = false, features = ["std_rng"] }
 
 [features]
 default = ["std", "rand", "rustc-hex", "byteorder"]

diff --git a/fixed-hash/src/tests.rs b/fixed-hash/src/tests.rs
@@ -244,23 +244,8 @@ mod rand {
 
 	#[test]
 	fn random() {
-		let default_seed = <StdRng as SeedableRng>::Seed::default();
-		let mut rng = StdRng::from_seed(default_seed);
-		assert_eq!(H32::random_using(&mut rng), H32::from([0x76, 0xa0, 0x40, 0x53]));
-	}
-
-	#[test]
-	fn randomize() {
-		let default_seed = <StdRng as SeedableRng>::Seed::default();
-		let mut rng = StdRng::from_seed(default_seed);
-		assert_eq!(
-			{
-				let mut ret = H32::zero();
-				ret.randomize_using(&mut rng);
-				ret
-			},
-			H32::from([0x76, 0xa0, 0x40, 0x53])
-		)
+		let mut rng = StdRng::seed_from_u64(123);
+		assert_eq!(H32::random_using(&mut rng), H32::from([0xeb, 0x96, 0xaf, 0x1c]));
 	}
 }